Knitting-machine.



NIEnmrADnEN AND ALBERT E. srnwnn'r, or rnnnitmiv, viiiiv'v nnmisfnrnn, AssrGNi' ons roncmn KNIr'riNG MACHINE Annnnnnnn conPANy,jor -F3n1vxnnv, lNEW f To all 'whom it may concern Bc' it known-that we,'N1`EL MGFADDEN .and

ALBERT E. STEWART., both o f Franklin, in the county of Merrimack 'and State of .New

Hampshire, have invented certain-new :ind

useful Improvements in 'KmcrmglMaclin'es,

' reference Vbeing had to the accompanying ments in rotary knitting and particularly to' "thatclass'of rotary knitting machineshaw' ing skeleton cylinders, s o called, located li- I tween theneedle cylinders and the'cam cyl- -con'strnct a V ki'iittix 0" machine of "thisnature' that the needle cylinder andskelct.on'.cylin`-.-.l .der can .i'otote' in unison whie `tbe-needle cylinde'r is adapted tobe'move ervelly'relnltivet'othe skeleton cylindelgnd cam cylin-.

inders. One vobject of this invention isto `in iprove knitting machines of this na-ture tofacilitate: the operation 'thereofon yarns of highfnurnf; "bers or on coarse yarns vformed of comparatively short staple.

Another object ef-this investitori 'i's'fo so der, to varyfthe len h of the stitches.

Other-objects'o 'the inventonrw'il 'upf' pear fromthe 'following descripit'rzm.A

The invent-ion. consists in such novel' fea-.

't-n'res 'of construction jan'd. comlnation of. parts as shall hereinafter be more fullv described and pointedcrit in theiclaims.

Figure" -l represents a 'ventical sectional view ofpnrt's of aknitting machine illustrat- Qi-ng" this invention.' 'Fig.'2 'represents a. secvis operative and desirable under-most con-v4 ditions it is found thatin the use of yarn of Similar characters'of 'reference designate corresponding .parts throughout.

"In circnlarlmitt-in machines having' shelf eton cylinders,I so ca ed, theyar'n 'or thread has heretofore been su plied tothe' needles'- through 'the medium o afguide eye usually: movable with therotary cam cylinder aroundy the needle" cylinder. .-While; this mechanism short staple or of unusual'lineness, the nrove- "mentof' the yarn delivery de'vice 'relative to tends, at times, toexert und-ne strain onthe.

- yarn, .which strainsometimes 4eiects thethe needles'on which the'yarn. isfen-gaged stretching of the vyarn lor the breakage thereof. In the. manufacture of goods 'from such "yarn r qi aber, 'it 1 5; desirs-bini@ @wie any undue Ing'ca rry'inLggon'r; invention :into in l'a 'lnnt-tllnginaelnne having a' skeleton cylin?.

der .the problem i'ssomewhat .complicted by the necessity offrotating Athe skeleton cyl-1 while, preferably, provid'incr forithevertical .j

'- As shown in'fthe 'dra'vv-ings, in its preferred. .orm'indicates-a.main-enbaseplate, of af knitting:rnachinefopen'at its-.center 'ndfhav; 1-

- ing the annular. flange ;or-way6-;and theeir- .jcylii'ider 8 havin 'the'upivardly ez'ttending member112 is rot'atably'monted the usul -which includes thefcam 'ring 17, r

having abearingonthe'ange Gris the .an- 'liula'r bevelffgearlS which is driven from '18' is preferably recessed .to receive the base.

ring 20 of theskeleton cylinder having' seriesof flat verticalbars 21', v21. which ornn'f.v 1

guides forthe butts of thneedles and afford" side bearings -for said vbuttsfto resist, torsional stra-1n' exertedthereon by the Scams .of the ca'rncylinder. The lring 20 is secured .to the 'geen 18 by screws whereby saidri' 'and-its 'guide barsl, 2lyl`0ttrwith-sali` gearand rotary motionistransniittedjffrorn below the needle bther'respects than those noted, the needle said gear `18 to the needle cylinder 22 by means of the pin 23 which is fixed to saidl gear 18 and engages the vertical groove 24 ,in the outer surface of the needle cylinder guide grooves 25, 25. In

cylinder 22 is similar to those heretofore constructed and is adapted Ato carry a series of needles n having the butts b. This needle ylinde'r is' supported at its lower end by tion of'said need the cam ring 17 and is'adaptcd to belifted the engagement of the pin 14 in its lifting movement or by or through the shifting of, Cam ring V16-50 thatduring the. rotae cylinder 22 said cylinder may be moved vertically to vary or. adjust the length of the stitches; lllhen, now the gear 18 is driven, the skeleton cylinder, formed by the rin'g20 and the bars 21,

and the needle cylinder 22 are giveii'a rocylinder with the driving means as vwe are 36C aware that this may be modified. lVe are Aalso aware that the skeleton cylinder need not necessarily be engaged or connected with the driving mechanism exactly as shown.

Having thus described our invention, We

'inder mounted on said claim as new and desire ters Patent- 1. AV rotary knitting machine comprising a needle cylinder 'and a skeleton cylinder, both rotatably mounted, and rotary drive means for 'said cylinders having a member slidablyv engaged by said needle cylinder.

2. A rot-ary knit-ting machine comprising a skeleton cylinder rotatably mounted, a rotatable needle cylinder, means for moving said needle cylinder relative to the skeleton cylinder, vand means'for'rotating said cylinders in unison.

3. A rotary knitting machine comprising a gear rotatably mounted in a horizontal position, a skeleton' cylinder mounted on said gear, and a needle cylinder slidably mounted and embraced by said skeleton cylinder.

4. A rotary knitting machine comprising to secure` by Leta horizontal annular gear, a skeleton cylgear, and a needle cylinder embraced by and driven through said gear.l

5. A rotary knitting machine comprisinga horizontal base plate .open at its center and having an annular bearing, a oani'cyllnder mounted on said plate, an annular gear Journaled in said bearing, a skeleton cylinder fixed to said gear, and a needle cylinder enibraced bysaid-gear and slidable vertically,l said gear and said needle cylinder having coniplemental driving connection, substantially as described.

NIEL MCFADDEN. ALBERT E. STEXVART.

lfVitnesses lViiL'rnn F. DUFFY, AGNES G.CUNN1I\'GHA1\L 

